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发明名称
HEATTAND COROSSIVEERESISTANT DOUBLE WOUND PIPE STEEL
摘要
申请公布号
JPS5428765(A)
申请公布日期
1979.03.03
申请号
JP19770094857
申请日期
1977.08.08
申请人
USUI KOKUSAI SANGYO KK
发明人
USUI MASAYOSHI
分类号
F16L9/02;B21C37/06;B23K1/00;F16L9/16;F16L58/08
主分类号
F16L9/02
代理机构
代理人
主权项
地址
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